A cylindrical item usually having a flanged aperture designed to hold and mount an instrument in a predetermined position. Excludes holder, watch.
NSN 6105-01-571-7371
NSN 5985-01-501-1108
NSN 6135-01-116-3385
NSN 5855-00-221-9435
NSN 7035-01-602-9350
NSN 6220-01-060-9823
NSN 5999-01-383-0280
NSN 6240-01-476-7935
NSN 2925-01-372-9455
NSN 6320-00-500-4172
NSN 6105-00-301-5334
NSN 4140-00-122-2431